| 摘要 |
According to one embodiment, a disk drive apparatus includes a disk having a plurality of tracks formed of approximately concentric patterns, a head slider reading and writing data from and to the disk, a motor driver configured to move the head slider to a target position on the disk, an electronic circuit configured to transfer the data to and from a host computer, and a power source configured to provide power to the electronic circuit based upon a position of the head slider.
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